Harare for internship with unilever

Hi i will be arriving at harare from india within a week for a 2 month internship from unilever. Anything specific that you guys would recommend me to carry?
also is the yellow fever vaccination mandatory to take?
And do we get any calling cards there for india?

You don't need Yellow Fever vaccination for Zimbabwe. Check here: http://www.who.int/ith/chapters/ith2012 … rylist.pdf
and
http://wwwnc.cdc.gov/travel/destination … e/zimbabwe